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PTE Test Reveiw

Test Review for PTE and Atomic Str Test

QuestionAnswer
WHAT IS THE PERIODIC TABLE? A CHART USED TO ORGANIZE ELEMENTS INTO GROUPS AND PERIODS
WHAT ARE THE COLUMNS ON THE PERIODIC TABLE CALLED? GROUPS OR FAMILIES
WHAT DO GROUPS ON THE PERIODIC TABLE HAVE IN COMMON? THEY HAVE THE SAME NUMBER OF VALENCE ELECTRONS SO THEY HAVE SIMILAR CHEMICAL AND PHYSICAL PROPERTIES
WHAT DO PERIODS ON THE PERIODIC TABLE HAVE IN COMMON? THEY HAVE THE SAME NUMBER OF ENERGY LEVELS (SHELLS) TO HOLD THEIR ELECTRONS
WHAT IS THE MOST REACTIVE GROUP OF METALS ON THE PERIODIC TABLE? ALKALI METALS - GROUP 1 - THEY ONLY HAVE ONE VALENCE ELECTRON
WHAT IS THE MOST STABLE GROUP/FAMILY ON THE PERIODIC TABLE? NOBEL GASSES - GROUP 18
WHY ARE NOBEL GASES UNREACTIVE? THEIR VALENCE SHELL IS FULL - THEY HAVE 8 VALENCE ELECTRONS
HOW MANY VALENCE ELECTRONS DO ATOMS NEED IN ORDER TO BE THE MOST STABLE? 8
HOW MANY VALENCE ELECTRONS DOES CHLORINE HAVE? 7
HOW MANY VALENCE ELECTRONS DOES SILICON HAVE? 4
HOW MANY VALENCE ELECTRONS DOES FRANCIUM HAVE? 1
WHAT IS THE OVERALL CHARGE OF THE NUCLEUS? POSITIVE
WHAT IS THE OVERALL CHARGE OF THE ELECTRON CLOUD? NEGATIVE
HOW DO YOU KNOW HOW MANY PROTONS AN ATOM HAS? LOOK AT THE ATOMIC NUMBER
HOW DO YOU FIND THE NUMBER OF ELECTRONS AN ATOM HAS? LOOK AT THE ATOMIC NUMBER - ASSUME ATOM IS NEUTRAL SO # OF PROTONS = # OF ELECTRONS
HOW DO YOU FIND THE NUMBER OF NEUTRONS AN ATOM HAS? ROUND THE MASS THEN SUBTRACT THE ATOMIC NUMBER
HOW MANY PROTONS DOES SODUIM HAVE? 11
HOW MANY ELECTRONS DOES SODIUM HAVE? 11
HOW MANY NEUTRONS DOES SODIUM HAVE? 12
FLUORINE HAS 7 VALENCE ELECTRONS AND LITHIUM HAS 1 VALENCE ELECTRON - HOW WILL THEY REACT? FLUORINE WILL GAIN LITHIUMS 1 ELECTRON
WOULD YOU EXPECT FLUORINE TO REACT WITH MAGNESIUM? NO - FLUORINE ONLY NEEDS TO GAIN 1 ELECTRON IN ITS VALENCE SHELL AND MAGNESIUM NEEDS TO LOOSE 2
HOW DO YOU KNOW IF AN ATOM WILL GAIN, LOOSE, OR SHARE ELECTRONS? IF AN ATOM HAS 1,2, OR 3 VALENCE ELECTRONS IT WILL LOOSE ELECTRONS. IF AN ATOM HAS 4 VALENCE ELECTRONS IT WILL SHARE, AND IF AN ATOM HAS 5,6, OR 7 VALENCE ELECTRONS IT WILL GAIN
WHAT NOBEL GAS HAS 6 ENERGY LEVELS FOR THEIR ELECTRONS? RADON
NAME THE ELEMENT THAT IS GROUP 14 PERIOD 3 SILICON
A SCIENTIST IS LOOKING FOR AN ELEMENT THAT REACTS LIKE MAGNESIUM BUT HAS A LOWER ATOMIC MASS - WHAT WOULD YOU RECOMMEND? BERYLLIUM
WHAT IS MORE SIMILAR TO BISMUTH - NITROGEN OR CAESIUM? NITROGEN - THEY ARE IN SAME FAMILY
HOW IS THE PERIODIC TABLE ORGANIZED? BY ATOMIC NUMBER
HOW CAN YOU FIND THE NUMBER OF ELECTRONS A NEUTRAL ATOM HAS? LOOK AT THE ATOMIC NUMBER, IF NEUTRAL PROTONS = ELECTRONS
WHAT DETERMINES AN ELEMENTS IDENTITY? PROTONS
WHAT DETERMINES AN ELEMENTS REACTIVITY? VALENCE ELECTRONS